Lawrence G.R.P. <br/><br/>
Cartographic Methods / 
G.R.P. Lawrence 
 - 2nd ed. 
 - London  Methuen & Co. Ltd  1979 
 - x, 153p.  pbk, ill. 
<br/><br/><label>ISBN: </label>0416716504 
<br/><br/><label>LC Class. No.: </label>GA105.3.L3 1979